Title :
Quantum field formalism in the theory of developed turbulence of conducting magnetic fluids
Author :
Hnatich, M. ; Horvath, D. ; Kopcansky, P.
Author_Institution :
Inst. of Exp. Phys., Slovak Acad. of Sci., Kosice, Czechoslovakia
fDate :
3/1/1994 12:00:00 AM
Abstract :
In this paper we study, using renormalization group (RNG) method the statistic properties of a randomly stirred ferrohydrodynamic system with weak magnetization m&oarr; The universality of the RNG enables us to apply it to a wide spectrum of physical problems, including stochastic problems in the mechanics of continuum. It is also shown that in ferrohydrodynamic systems, similar to magnetohydrodynamic ones, a steady-state asymptotic regime exists in which the spectrum of pulsation energy has the Kolmogorov character k-5/3, where k is a wavenumber. It was also shown that strong non-linear interactions of the velocity field with magnetization generate, in the equation for dynamics of the field of magnetization dissipative terms. Dimensionless “magnetization” Prandtl number w-1 attains an universal value in the turbulent regime
Keywords :
magnetic fluids; magnetisation; magnetohydrodynamics; quantum field theory; renormalisation; statistical analysis; turbulence; Kolmogorov character; conducting magnetic fluids; developed turbulence; dimensionless magnetization Prandtl number; dissipative term; ferrohydrodynamic systems; magnetization; magnetization field; mechanics of continuum; physical problems; pulsation energy spectrum; quantum field formalism; randomly stirred ferrohydrodynamic system; renormalization group method; statistic properties; steady-state asymptotic regime; stochastic problems; strong nonlinear interactions; turbulent regime; velocity field; wavenumber; weak magnetization; Equations; Gyromagnetism; Hydrodynamics; Magnetic liquids; Magnetic properties; Magnetization; Magnetohydrodynamic power generation; Physics; Quantum mechanics; Stochastic processes;
Journal_Title :
Magnetics, IEEE Transactions on